公开(公告)号：FR1379265A

公开(公告)日：1964-11-20

申请号：FR958345

申请日：1963-12-24

Applicant: BASF AG

Inventor： HUEBLER WILLY ,  SCHOLZ HELLMUT ,  HIRT REINHARD ,  WELZEL GERHARD

IPC: C08F214/06

公开(公告)号：DE3260998D1

公开(公告)日：1984-11-22

申请号：DE3260998

申请日：1982-07-14

Applicant: BASF AG

Inventor： BUNG RICHARD DR ,  GANS KARL ,  SCHREYER GEROLD ,  WELZEL GERHARD

IPC: C08J3/14 ,  B29B9/00 ,  B29B9/12 ,  C08J3/16 ,  D01D5/18 ,  D01D5/40

Abstract: A process for the repeatable production of shaped particles of various geometries from polymer dispersions, melts or solutions, wherein first particles are expelled by means of a rotating disk and are introduced while still liquid, in a radially outward direction, into a liquid precipitant or fixant film and the particles are thereby coagulated or fixed and also given an additional structure and are transported away from the point of introduction.

公开(公告)号：CA1163033A

公开(公告)日：1984-02-28

申请号：CA381041

申请日：1981-07-03

Applicant: BASF AG

Inventor： DISTLER DIETER ,  WOLF HANS ,  WELZEL GERHARD

IPC: C08F2/00 ,  C08F2/22 ,  C08F2/24 ,  C08F6/00 ,  C08F6/14 ,  C08F220/00 ,  C08F220/04 ,  C08F220/12 ,  C08F222/02 ,  C08F246/00 ,  C08J3/02 ,  C08J3/09

Abstract: PREPARATION OF COPOLYMER DISPERSIONS HAVING A NARROW PARTICLE SIZE DISTRIBUTION, AND EXHIBITING DILATANT FLOW OVER A BROAD RANGE OF CONCENTRATIONS A process for the preparation of copolymer dispersions having a narrow particle size distribution, and exhibiting dilatant flow over a broad range of concentrations, by emulsion copolymerization of from 1 to 10 percent by weight, based on total monomers, of .alpha.,.beta.-mono-olefinically unsaturated monocarboxylic acids and/or dicarboxylic acids with other mono-olefinically unsaturated monomers and with from 0 to 5 percent by weight of polyolefinically unsaturated monomers in the presence of conventional emulsifiers, dispersants and polymerization initiators, and in the presence or absence of regulators, wherein the monomers are copolymerized in aqueous emulsion, with simultaneous agglomeration but only partial fusion of the initially formed polymer particles, at a temperature near the glass transition temperature of the copolymer formed, and thereafter A) the copolymer content of the aqueous copolymer dispersion is brought to 35 to 55 percent by weight an the pH to 3 to 5, or B) the water contained in the aqueous copolymer dispersion is entirely or partially replaced by a watermiscible liquid which does not dissolve or swell the copolymer.

公开(公告)号：CA1133190A

公开(公告)日：1982-10-05

申请号：CA306822

申请日：1978-07-05

Applicant: BASF AG

Inventor： STREIT WERNER ,  FIKENTSCHER ROLF ,  GANS KARL ,  WELZEL GERHARD ,  GLASER KLAUS ,  SCHAEFER EMIL

IPC: C08G59/00 ,  C08G59/20 ,  C08G59/50 ,  C08G65/00 ,  C08G65/32 ,  C08G65/333 ,  C08G65/338 ,  C08G81/00 ,  C08L23/00 ,  C08L51/00 ,  C08L51/02 ,  C08L63/00 ,  C08L71/02 ,  C08L77/00 ,  C08L101/00 ,  C08G65/26 ,  C08G73/00

Abstract: Water-soluble, crosslinked nitrogen-containing condensation products, the viscosity of which, in aqueous solution, increases with increasing temperature, are obtained by reacting a block copolymer of the formula: where R is , n being from 0.75 to 3, , , or , x is from 50 to 250, y is from 20 to 100, the ratio of x to y is from 6.5 to 1 : 15, with compounds having at least four basic NH groups in a weight ratio of from 0.8 : 1 to 30 : 1. The products are added to aqueous systems, e.g. polymer solutions and polymer dispersions, to improve the viscosity characteristics.

公开(公告)号：FR1307669A

公开(公告)日：1962-10-26

申请号：FR881248

申请日：1961-12-07

Applicant: BASF AG

Inventor： PENNING ERNEST ,  WELZEL GERHARD ,  REINHARD HANS ,  WOLF HANS ,  WILHELM HANS

IPC: B32B27/00 ,  C08G18/62 ,  D06M15/267 ,  D06M15/564 ,  D06N3/04 ,  D06N3/14